Re: caching query results

On Wednesday 21 May 2003 20:26, alex b. wrote:
> hello dear people without shaved necks!
>
> as many of you have already told me cursors are the way to go - now I know!
>
> there it is, kindly provided my BILL G.:
>
>    BEGIN;
>    DECLARE <cursorname> FOR <query>;
>    FETCH <number_of_rows> FROM <cursorname>;
>    MOVE {FORWARD|BACKWARD} <number_of_rows> IN <cursorname>;
>
>
> THANK YOU ALL VERY VIEL (much in german)!!!
>
> I will now have to implement session ID's into my CGI's...
>
> oh by the way... lets say a transaction has begun and was never
> commited.. what will happen to it?
>
> is there a automatic rollback after a certain time?
> or would there be ton's of open transactions?
>

In context of one connection, You can not start next transaction until
previous transaction is not ROLLBACK or COMMIT-ed. Transaction will close
with connection (maybe someone from hackers team might tell You more).

> Darko Prenosil wrote:
> > On Wednesday 21 May 2003 16:34, alex b. wrote:
> >>hello all
> >>
> >>
> >>I've been wondering, if it was possible to cache the query results...
> >>
> >>the reason I ask is because of a script I wrote recently... each request
> >>takes up to 4 seconds... that ok, because its quite a bit of data... but
> >>instead of always collecting the data again and again some kind of cache
> >>wouldn't be all too bad.
> >>
> >>assuming that all queries are always the same - except for the OFFSET..
> >>- LIMIT stays the same.
> >>
> >>cheers, alex
> >
> > The only way is to use cursor or temp table.
> >
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